A method for the regulation of a depth of penetration during the thermal joining of workpieces in a laser module

摘要

A method for the regulation of a depth of penetration (t) during the thermal joining of workpieces (3) in a laser module (6), in the case of demwährend of the joining of the workpieces (3) in the laser module (6) with a measuring device (2) a first depth of penetration (t) of the laser beam (1) on at least one measuring point (p) is determined, to a to the measuring device (2), that is connected to computing module (4) and transmitted by the computing module (4) at least one control signal (r) is calculated, andthe computing module (4) from the control signal (r), the in a parameter (7) which, with the computing module (4) is connected, stored welding parameters for the workpieces to be joined (3) in an edge condition undden module (8) which, with the computing module (4) is connected, stored boundary conditions for the joining of the workpieces (3) at least one correcting variable (s) in order to achieve a desired value of the depth of penetration (t) is calculated and this on to the laser module (6), and the parameters to the at least one correcting variable (s) by means of the laser module (6) are adapted, andin the edge condition module (8) as a boundary conditions for the joining of the workpieces (3) type and power of the utilized laser beam (1), type and the diameter of the utilized optical fibers, type of the used laser welding optics, type and dimension of a jointing constellation, material (s) of the workpieces to be joined (3) and / or a user specified position of the depth of penetration (t) are stored and in the calculation of the manipulated variable (s) are taken into account.